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Adds "Mute new browser previews" to Settings → Integrations → Browser. When on, new preview tabs are created muted; the per-tab mute toggle still overrides. The mute rides along with the existing createTab defaults (zoom and color scheme), so the guest is muted from creation and never plays audio before the setting applies. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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| tabId: DesktopPreviewTabIdSchema, | ||
| zoomFactor: Schema.optional(Schema.Number.check(Schema.isGreaterThan(0))), | ||
| colorScheme: Schema.optional(DesktopPreviewColorSchemeSchema), | ||
| audioMuted: Schema.optional(Schema.Boolean), |
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🟡 Medium src/ipc.ts:1029
When createTab receives audioMuted: true, the guest can emit audio before it is muted, so autoplay audio is not reliably suppressed. audioMuted is only applied later by registerWebview via wc.setAudioMuted, after the <webview> has a src and asynchronous lease.ready; apply the mute during guest attachment before navigation instead.
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In file @packages/contracts/src/ipc.ts around line 1029:
When `createTab` receives `audioMuted: true`, the guest can emit audio before it is muted, so autoplay audio is not reliably suppressed. `audioMuted` is only applied later by `registerWebview` via `wc.setAudioMuted`, after the `<webview>` has a `src` and asynchronous `lease.ready`; apply the mute during guest attachment before navigation instead.
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Fixed in 4e5ba01. Preview guests are now muted in the main process on did-attach-webview, before the guest navigates, and registerWebview then applies the tab's committed mute (unmuting tabs that should be audible). That closes the window between guest attach and registration.
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| return { | ||
| zoomFactor: defaults.zoomFactor, | ||
| colorScheme: defaults.appearance, | ||
| audioMuted: defaults.muteNewPreviews, |
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🟡 Medium browser/browserDefaults.ts:107
The web test suite now fails because browserDefaultTabState adds audioMuted: false under default settings, while desktopTabLifetime.test.ts still asserts that createTab receives only zoomFactor and colorScheme at lines 70 and 130. Update those toHaveBeenCalledWith expectations to include audioMuted: false.
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In file @apps/web/src/browser/browserDefaults.ts around line 107:
The web test suite now fails because `browserDefaultTabState` adds `audioMuted: false` under default settings, while `desktopTabLifetime.test.ts` still asserts that `createTab` receives only `zoomFactor` and `colorScheme` at lines 70 and 130. Update those `toHaveBeenCalledWith` expectations to include `audioMuted: false`.
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Fixed in 4e5ba01: updated the createTab expectations in desktopTabLifetime.test.ts and HostedBrowserWebview.test.tsx (the latter had the same stale assertion).
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ApprovabilityVerdict: Not approved Macroscope's review found this PR not approvable — This PR adds a persisted Browser setting that changes new preview-tab behavior and propagates it through the desktop IPC and preview runtime, so it is a product-default change rather than a non-runtime edit. Unresolved findings also identify a possible pre-mute audio window and stale tab-creation test expectations. Not approved because:
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Navigate logical layers of code changes, visualize relationships, and explore their blast radius. No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Repository: pingdotgg/t3code/.coderabbit.yaml Review profile: CHILL Plan: Advanced Run ID: 📒 Files selected for processing (5)
🚧 Files skipped from review as they are similar to previous changes (1)
Included review availability: This review used your included allowance. Your plan provides up to 10 included reviews per hour; 8 remain after this review. 📝 WalkthroughWalkthroughA new client setting controls whether browser preview tabs start muted. Its value flows through browser defaults and preview creation IPC to initialize each new tab’s audio state. Newly attached guests are muted before registration applies the tab’s mute setting. ChangesPreview mute setting
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant BrowserDefaults
participant PreviewCreateTab
participant PreviewIPC
participant PreviewManager
participant DesktopWindow
BrowserDefaults->>PreviewCreateTab: provide audioMuted default
PreviewCreateTab->>PreviewIPC: send audioMuted in payload
PreviewIPC->>PreviewManager: pass audioMuted option
DesktopWindow->>DesktopWindow: mute guest on attachment
PreviewManager->>PreviewManager: apply tab mute setting during registration
Suggested reviewers: Merge Risk: ⚪ Minimal · up to The preference is off by default and lets new previews start muted when enabled, while preserving the existing per-tab mute control. No actionable merge risk remains in the reviewed change. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The new preference changes audio behavior for preview tabs without adding a new capability or broadening access. The initial mute is reconciled with each tab’s own setting, although the wider security review is incomplete. Retained concerns Security review detailsSecurity Blast Radius
Trust Boundaries and Controls
Resilience and Maintainability Implications
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
Review comments at @apps/desktop/src/preview/Manager.ts:
- Line 2128: Keep the guest on about:blank during initial creation; update the
HostedBrowserWebview and registerWebview flow so initial navigation begins only
after registration has applied the initial audio-muted state, then navigate to
initialSrc.
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📒 Files selected for processing (11)
apps/desktop/src/ipc/methods/preview.tsapps/desktop/src/preload.tsapps/desktop/src/preview/Manager.tsapps/web/src/browser/browserDefaults.test.tsapps/web/src/browser/browserDefaults.tsapps/web/src/components/settings/IntegrationsSettings.tsxapps/web/src/components/settings/SettingsPanels.logic.tsapps/web/src/components/settings/SettingsPanels.tsxapps/web/src/components/settings/settingsSearch.tspackages/contracts/src/ipc.tspackages/contracts/src/settings.ts
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A new preview's page can start loading before the renderer registers the webview, which is where the tab's mute is applied, so a muted-by- default tab could briefly play audio. Mute every guest on did-attach-webview; registerWebview then applies the tab's committed mute, unmuting tabs that should be audible. Also update createTab expectations for the new audioMuted default. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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Note This comment is posted by Julius' dot The new Browser switch and start-muted behavior have no before/after images or recorded check, and the PR reports no executed test results. Closing under verification. Add the UI comparison, show a new preview starting muted and the per-tab override working, and report focused check results before requesting reconsideration. Configuring the existing mute capability can fit the guide; the gap here is evidence. |
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What Changed
Adds a Mute new browser previews switch to Settings → Integrations → Browser (off by default). When it's on, new preview tabs start muted. The per-tab mute button from #7252 still toggles individual tabs.
browserMuteNewPreviewsclient setting (contracts), wired into reset-to-defaults and settings search like the other browser defaults.DesktopPreviewTabDefaults/createTabIPC input gain an optionalaudioMuted, passed through preload → IPC →PreviewManager.createTab, which seeds the tab'saudioMuted.Why
Agents and users open lots of preview tabs, and autoplaying media is noisy. Muting each tab by hand gets old. The value is sent with the existing
createTabdefaults (the same path zoom and color scheme take). Because the page can start loading before the renderer registers the webview, the main process also mutes every preview guest ondid-attach-webview.registerWebviewthen applies the tab's own mute, so a muted-by-default tab never makes sound and unmuted tabs are unmuted as soon as they register. The field is optional, so an older renderer keeps the current unmuted behavior.UI Changes
One new switch row at the bottom of the Browser section, matching the "Auto-show floating preview" row above it.
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